Inventor: Turpin, Susanna
Inventor: Turpin, Susanna
Inventor: Hjeltnes, Stein Harald
Inventor: Thibault, Bernard
Inventor: Hart, Roy, Brewer, Lester Raymond
Inventor: Ranney, Thomas G.
Inventor: Kopan, Volodymyr
Inventor: Stommel, John R., Griesbach, Robert J.
Inventor: Stommel, John R., Griesbach, Robert J.
Inventor: Griesbach, Robert J., Stommel, John R.
Inventor: Conibear, Sarah Frances
Inventor: Spira, Joel S., Spira, Ruth R.
Inventor: Spira, Joel S., Spira, Ruth R.
Inventor: Conibear, Sarah Frances
Inventor: Conibear, Sarah Frances
Inventor: Conibear, Sarah Frances
Inventor: Conibear, Sarah Frances
Inventor: Conibear, Sarah Frances
Inventor: Conibear, Sarah Frances
Inventor: Hunter, David Michael, Kappel, Frank
Inventor: Doyle, James F.